Improvement in apparatus for increasing the pressure of gas in pipes



@LMURRAY. APPARATUS'FOR INCREASING THE PRESSURE OF GAS IN PIPES. No.176,982. Patented May 2-,1876.

N-PETERS, PHDYD-UTNOGRAPHER. WASHINGTON. D C.

. UNITED STATEs PATENT OFFICE.

cHARLEs A. MURRAY, or PITTSBURG, PENNSYLVANIA.

.IMPROVEMENT IN APPARATUS FOR INCREASING THE PRESSURE 0F GAS IN PIPESI Specification forming part of Letters Patent No. 176.982, dated May 2, 1876; application filed January 24, 1876. v "I To all whom it may concern:

Be it known that I, GHARLEs A. MURRAY,

of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Process and Apparatus for In creasing the Pressure of Gas,

in Pipes; and I do hereby declare that the following is afull and exact description thereof, reference being had to the accompanying drawing, and to the letters of'reference marked thereon.

' My invention relates to an improvement in a steam-jet pipe; 0, a drain-valve, and D a gas-pipe. In conveying gas from gas-wells to a place distant from the wells the pressure of gas becomes greatly diminished, thereby destroying, to a great extent, its efficiency as a fuel for manufacturing purposes. To obviate this difficulty I form a chamber, A, in. the pipe used for conveying the gas from the wells, at a point or points which is or are between the place of supply and the outlet of gas; In this chamber I place a steam-jet pipe, B, which communicates with a steamboiler or other steam-supply, said jet-pipe being furnished with a suitable regulating-valve,

for adjusting the flow of steam through it. The gas-pipe D is furnished with an automatic drain-valve, consisting of a chamber, 6, valve f, having a float, g, the buoyancy of which, when the chamber ,0 is tilled with water, must be more than the pressure of gas upon the valve, so that when the chamber 6 fills with water, the float will raise the valve, and thereby allow the water to escape from the chamber. The steam should be dry or superheated before entering that part of the jet-pipe B in the chamber A. The steam, flowing through the jet-pipe B, will form a partial vacuum for; ward of the jet-pipe, and the gas in the rear of the outlet of the jet-pipe B will rush forward to fill the partial vacuum thus formed, and the current of steam will drive forward the gas in front of the outlet of the jet-pipe,

CHARLES A. MURRAY.

Witnesses: I

JAMES J. J 0HNsToN, A. H. JoHNs'roN. 

